Landgrave Joseph Ignaz Philipp of
Hesse-Darmstadt was born in
Brussels on 22 January 1699, the son of
Philip of Hesse-Darmstadt and his wife Princess Marie Ernestine of
Croy-Havré (1673–1714), second daughter of Ferdinand Joseph von Croÿ, 3rd Duke of Havré (1644–1694). He was raised partially in
Mantua. == Biography ==